Broadband reflective polarizer for liquid crystal display...

Details Broadband reflective polarizer for liquid crystal display... Broadband reflective polarizer for liquid crystal display...

2004-11-19

2009-02-03

Wood, Kevin S (Department: 2874)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Passive liquid crystal polarizer

C349S193000, C349S115000

Reexamination Certificate

active

07486376

ABSTRACT:
The present invention relates to a method of manufacturing a reflective polarizing film for a liquid crystal display device in which cholesteric liquid crystal layers having different selective light-reflecting wavelengths are laminated in the laminated coating method, thus a forming liquid crystal film that covers a visible light region and ¼λ retardation film are attached to the liquid crystal film. In this case, two or more cholestric liquid crystal layers having different selective light-reflecting wavelengths are laminated in order from the shorter wavelength to the longer wavelength in the laminated coating method. Further, during the lamination, orientation layers are laminated between the liquid crystal layers to maximize the selective reflection characteristic of the cholesteric liquid crystal.

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